I have some older German relatives and my parents coming to visit me in May. They expressed a desire to see more of the wonderful scenic landscapes and wonders (canyons, petrified forests,national monuments etc) with Grand Canyon high on their list. However, I do want them to see a bit of the city life too. I'm pretty sure they cannot walk too much in the heat and so should probably avoid too much of AZ and UT.
My thought is if I can start in SF and end up in LAs Vegas and get all the possible wonderful sights in between with GC being a must. Could you'll please suggest the best sequence of places and route to go. I can plan for about 6-7 days. I am getting anxious since I'm running out of time to make flight bookings,
Thanks a lot